removePropertyChangeListener

Remove a PropertyChangeListener for a specific property. If listener was added more than once to the
same event source for the specified property, it will be notified one less time after being removed. If
propertyName is null, no exception is thrown and no action is taken. If listener is
null, or was never added for the specified property, no exception is thrown and no action is taken.

addPropertyChangeListener

Add a PropertyChangeListener for a specific property. The listener will be invoked only when a call on
firePropertyChange names that specific property. The same listener object may be added more than once. For each
property, the listener will be invoked the number of times it was added for that property. If
propertyName or listener is null, no exception is thrown and no action is taken.

removePropertyChangeListener

Remove a PropertyChangeListener from the listener list. This removes a PropertyChangeListener that was registered
for all properties. If listener was added more than once to the same event source, it will be
notified one less time after being removed. If listener is null, or was never added, no exception is
thrown and no action is taken.

addPropertyChangeListener

Add a PropertyChangeListener to the listener list. The listener is registered for all properties. The same
listener object may be added more than once, and will be called as many times as it is added. If
listener is null, no exception is thrown and no action is taken.